Sikorsky Aircraft Corp., Stratford, Conn., was awarded on Feb. 24 an $8,659,976 modification to a previously awarded firm-fixed-price indefinite-delivery/indefinite-quantity contract (N00019-07-D-0004) to exercise an option for the procurement of VH-3D executive helicopter special progressive aircraft rework, vendor repairables and component overhaul.  Work will be performed in Stratford, Conn., and is expected to be completed in January 2012.  Contract funds will expire at the end of the current fiscal year in the amount of $8,659,976.  The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.